func errToEntry(ctx context.Context, subsystem string, err error, errKind ...any) log.Entry {
	var l string
	if anonFlag {
		l = reflect.TypeOf(err).String()
	} else {
		l = fmt.Sprintf("%v (%T)", err, err)
	}
	return buildLogEntry(ctx, subsystem, l, getTrace(3), errKind...)
}

func logToEntry(ctx context.Context, subsystem, message string, errKind ...any) log.Entry {
	return buildLogEntry(ctx, subsystem, message, nil, errKind...)
}

// on how it is used.
func LogOnceIf(ctx context.Context, subsystem string, err error, id string, errKind ...any) {
	if logIgnoreError(err) {
		return
	}
	logOnce.logOnceIf(ctx, subsystem, err, id, errKind...)
}

// LogOnceConsoleIf - similar to LogOnceIf but exclusively only logs to console target.
func LogOnceConsoleIf(ctx context.Context, subsystem string, err error, id string, errKind ...any) {
	if logIgnoreError(err) {

	histogramMetric = "histogramMetric"
)

// MetricDescription describes the metric
type MetricDescription struct {
	Namespace MetricNamespace `json:"MetricNamespace"`
	Subsystem MetricSubsystem `json:"Subsystem"`
	Name      MetricName      `json:"MetricName"`
	Help      string          `json:"Help"`
	Type      MetricTypeV2    `json:"Type"`
}

// MetricV2 captures the details for a metric

// target are valid. It checks both the configuration store as well as
// environment variables.
func (c Config) CheckValidKeys(subSys string, deprecatedKeys []string) error {
	defKVS, ok := DefaultKVS[subSys]
	if !ok {
		return Errorf("Subsystem %s does not exist", subSys)
	}

	// Make a list of valid keys for the subsystem including the `comment`
	// key.

					err = msgp.WrapError(err, "Namespace")
					return
				}
				z.Namespace = MetricNamespace(zb0002)
			}
		case "Subsystem":
			{
				var zb0003 string
				zb0003, bts, err = msgp.ReadStringBytes(bts)
				if err != nil {
					err = msgp.WrapError(err, "Subsystem")
					return
				}
				z.Subsystem = MetricSubsystem(zb0003)
			}
		case "Name":
			{
				var zb0004 string

### Core Features
- **Per-context configuration**: No global state, each context encapsulates configuration
- **Authentication**: NTLM, Kerberos, SPNEGO unified subsystem
- **SLF4J Logging**: Comprehensive logging throughout the codebase
- **Resource Management**: AutoCloseable patterns for file handles and connections
- **Thread Safety**: Components support concurrent access

//
// `key` can be one of three forms:
// 1. `subsys:target` -> request for config of a single subsystem and target pair.
// 2. `subsys:` -> request for config of a single subsystem and the default target.
// 3. `subsys` -> request for config of all targets for the given subsystem.
//
// This is a reporting API and config secrets are redacted in the response.

		Namespace: nodeMetricNamespace,
		Subsystem: tierSubsystem,
		Name:      ttlbDistribution,
		Help:      "Distribution of time to last byte for objects downloaded from warm tier",
		Type:      gaugeMetric,
	}

	// {minio_node}_{tier}_{requests_success}
	tierRequestsSuccessMD = MetricDescription{
		Namespace: nodeMetricNamespace,
		Subsystem: tierSubsystem,
		Name:      tierRequestsSuccess,

		Namespace: nodeMetricNamespace,
		Subsystem: subSys,
		Name:      name,
		Help:      help,
		Type:      gaugeMetric,
	}
}

func getResourceMetrics() *MetricsGroupV2 {
	mg := &MetricsGroupV2{
		cacheInterval: resourceMetricsCacheInterval,
	}
	mg.RegisterRead(func(ctx context.Context) []MetricV2 {
		metrics := []MetricV2{}

	if !globalIsDistErasure {
		sys.nodeName = ""
		return
	}

	host, err := xnet.ParseHost(globalLocalNodeName)
	if err != nil {
		logger.FatalIf(err, "Unable to start console logging subsystem")
	}

	sys.nodeName = host.Name
}

// HasLogListeners returns true if console log listeners are registered
// for this node or peers
func (sys *HTTPConsoleLoggerSys) HasLogListeners() bool {